Brown ground beef until it is no longer pink. Add onion and gari. Fry onMedium heat until onion is soft. Add tomatoes and tomato paste, cooking until most of the mositure is gone. Add half of grated cheese (rat cheese or mild Cheddar) and stir until melted. Add mushrooms, cut in half if large, Worcestershire sauce, black and red pepper to taste and salt (start with 3/4 teaspoon).

Boil vermicelli until al dente. Add to sauce. Place in shallow casseroleand top with rest of grated cheese. Bake in 300 F. to 325 F. oven until bubbly and cheese is melted nicely, about 45 minutes.